描述 Description

?The KT0922-D4 is KT Micro’s 2nd generation of proprietary fully integrated AM/FM receiver chip supporting mechanical tuning without MCU. The new features include improved tuning feel, new ST and Tuning light signal, improved EMI/EMC, improved FM stereo separation and one audio line-in channel.
Thanks to its advanced architecture, KT0922-D4 offers an excellent user listening experience with high sensitivity, high signal-to-noise ratio, low distortion and low sensitivity to interference.
KT0922-D4 provides direct and simple interface to support mechanical tuning. A pre-programmed low cost EEPROM can be used to configure the radio settings to differentiate product designs and accommodate standards in various regions. No external MCU is required.
Thanks to its high integration level and efficient user interface design, KT0922-D4 lowers the system cost, simplifies design and improves product reliability and manufacturability. KT0922-D4 can operate with two AAA batteries, making it ideal for low-power portable radio.

特性 Features

? Single-chip AM/FM radio solution
????? Built-in MCU
????? Support analog mechanical tuning
? Worldwide FM/AM band support
????? Maximum three FM bands with configurable frequency range within 32MHz-110MHz
????? Configurable AM frequency range within 500KHz -1710KHz
?????
? High Sensitivity
????? 1.6uVEMF for FM
????? 16uVEMF for AM
? High Fidelity
????? SNR (FM/AM): 60dB/55dB
????? THD: 0.3%
? Low Supply Current
????? 25mA (operating)
????? <15uA (standby)
? Integrated stereo indicator
????? Programmable sensitivity and hysteresis threshold
? Integrated tuning indicator
????? Programmable sensitivity and hysteresis threshold
? Low supply voltage
????? 2.2V to 3.6V, can be supplied with 2 AAA batteries
? Integrated low power crystal oscillator
????? Support 32.768KHz and 38KHz crystal
? Arbitrary reference clock supported
????? ?From 30KHz to 40MHz with 1Hz step
? One audio line-in channel
? Small form factor SSOP20L package
? RoHS Compliant

應(yīng)用 Application

Desktop and portable radio, boom box, clock radio, MP3 speaker, campus radio and other applications with mechanical tuning.